In the near future, during the first interstellar travels, humans encounter great evil roaming the galaxy for last few eons. The evil being is an incarnation of the last of the ancient immortals named Tah-Um (or in English - Notorious Mental). Mental has set forth to wipe the earthlings out for sheer fun, just like it did with all the other civilizations in the galactic history. This time, humans have a secret weapon left to them by an extinct civilization from Sirius - Timelock. Timelock will enable special forces veteran Sam 'Serious' Stone to return to the time of ancient Egypt and assassin Mental while it is offhand. Serious Sam is a high-adrenaline arcade-action shooter heavily focused on frantic arcade-style single player action. In a world where cyberpunk meets fantasy-fiction and advanced technology is mixed with black magic and psycho-powers, Sam travels through the beautiful world of ancient Egypt and several diverse planets, confronting countless Mental's minions...

Nice game for blowing out some frustration and the biggest horde mechanic I've ever seen in a game.

But the seemingly endless hordes of enemies get stale eventually and the game gives you few pointers as to where to go in some of the 'puzzles'.

And for the life of me I can't beat the last boss. It just can't be done the way he moves around while you charge the final weapon. The way the hoops are placed, I never get him to stand in a position where he takes damage from the final attack, then he revives all his health and there goes ten minutes into the *******.

I have never before quit a game at the end for not making the final boss. This one was the first.